The abrasives industry breaks through the bottleneck of the industry and develops and grows

The abrasives industry is a basic industry, but machining has always occupied an extremely important position. As far as abrasives are concerned, there are three aspects of improvement and breakthrough that are of great significance.

First, the improvement of the physical structure of abrasive tools, such as increasing the number of abrasive particles per unit time, increasing the average length of grinding, and increasing the grinding contact surface, all of which have changed the amount of grinding per unit time and effectively improved the efficiency. ;

Second, the application of superhard abrasives mainly refers to the application of superhard materials such as metal powders, metal oxides or CBN as fillers, and abrasives made of resin, ceramics or metal bonds. At present, the high-precision and high-efficiency grinding effect brought by super-hard abrasive tools has been widely recognized.

Third, new types of abrasive tools appear, such as micron-level polycrystalline ceramic microcrystalline abrasives, spherical shell abrasives containing fine diamond abrasive grains, and polyester film belts for ultra-fine polishing. The characteristics of these new abrasive tools make their grinding advantages vividly displayed.

Looking at the development of the grinding field, the future grinding process will put forward higher requirements for abrasive tools. Judging from the current situation, superhard products just meet these new grinding needs. For example, CBN abrasive has the characteristics of good thermal stability, high hardness and good wear resistance, so its abrasive tool has high linear speed, high grinding efficiency, and high abrasive tool life, especially suitable for processing high-speed steel and bearing steel. , stainless steel, chilled cast iron and other ferrous metal materials.

In addition, vitrified bond grinding wheels, high-speed grinding wheels with large pores, grinding wheels with different abrasive grains on different processing surfaces, and diamond saw blades that meet various needs will expand their application scope with technological progress and become the mainstream products for grinding processing.